Gas-heater.



No. 698,0I7. Patented Apr. 22, |902.

F. G. HDERLEIN.

GAS HEATER.

Application led Aug. 10, 1901.)

(No Modal.)

www @i MWI Wl TNE SSE S lillll .if www@ By d@ AITOHNEYS UNITED STATES 'PATENT OFFICE.'

FRANZ G. HOERLEIN, OF BROOKLYN, NEW YORK.

GAS-HEATER.

SPECIFICATION forming part of Letters `Patr-:nt No. 698,017, dated April 22,1902.

Application led August l0, 1901. Serial No. 71,562. (No model.)

To @ZZ whom it may concern:

Beit known that I, FRANZ G.IIOERLE1N, a citizen of the United States, residing in New York, borough of Brooklyn, in the State of New York, have invented certain new and usefulImprovements in Gas-Heaters,of which the following is a specification.

This invention relates to an improved gasheater for the use of bakers, confectioners,and others in boiling crullers and similar articles that are finished in boiling lard, sugar, &c.

Bakers,confectioners,and others have heretofore used an ordinary kettle over a coal or wood ire,which, especially in summer, is very objectionable, as it heats up the already-warm rooms in which the bakers and oonfectioners Work, and my improved gas-heater is designed for taking the place of the. old-style heaters and substituting a gas=heater for the same 5 and for this purpose my invention consists of a gas-heater composed of an exterior casing provided with transverse braces, perforated gas heating-tubes, supported by said casing and the braces, air-supply openings in the side walls of the casing, and a top ring provided at its upper face with radial grooves ,for permitting the products of combustion to pass in outward direction.

The invention consists, further, in certain details of construction and combinations of parts, which will be fullydescribed herein-k after and finally pointed out inthe claim.

In the accompanying drawings, Figure lis a side elevation of my improved gas-heater for bakers and confectioners use. Fig. 2 is a plan view of Fig. 1. Fig. 3 is a vertical longitudinal section on line 3 3, Fig. 2. Fig. 4 is also a vertical section on line 4 4, Fig. 2; and Fig. 5 is a vertical section through an interior ring adapted for use with the heater.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a cylindrical casing, which is preferably, made of sheet metal and provided with air-inlet openings e and at its lower part With a rim a, having an inwardly-projecting flange a. To the inwardly-projecting iiange ct are attached transverse braces B, which serve to support a number of perforated burner-tubes D, that are closed at one end and connected at the other end with a gas-supply pipe O, provided of gas to either one of the heating-pipes can be shut oft. An adjustable register B is arranged at the end of each gas heating-pipe adjacent to the cock O2, so as to regulate the supply of air, tothe pipe. The ends of the arched braces B are attached to the inwardlyprojecting ange a and to the under side of the heating-pipes D, so that the latter are firmly held in position. The top part of the casing A is formed of a ring A', that is provided with a downwardly-projecting circumferential flange riveted to the casing A, and preferably made of cast metal and provided with a number of radial grooves b and intermediate raised seats b', said grooves permitting the passage of the products of combustion in outward direction when the kettle is placed in position upon the top ring. The inner circumference of the top ring A is provided with a seat for supporting a secs ond ring A2, of smaller diameter, which is likewise provided with radial grooves and intermediate raised portions or seats, said interior ring being indicated in dotted lines in Fig. 2 'and shown in cross-section in Fig. 5. This ring is provided with an interior seat for a similar smaller ring, and so on, so that the gas-heater can be used for heating large `or small kettles or boilers, according to the number of crullers or other articles to be treated.

When smaller vessels are to be heated, only the central supply-pipe is employed, while the supply of gas to the outer heating-pipes is cut off. In place of the straight gas heat ing-pipes pipes of circular shape may be used, as I do not desire to conne myself to the special form of heating-pipes shown.

The advantages of my improved gas-heater for bakers, confectioners, &c., are, first,l that the crullers or other articles can b'e'quickly and conveniently cooked without requiring a coal fire; second, that large or small vesselsv can be heated Vwith equal facility; third, that a regular and effective heating-dame is pro- IOO duced by the supply of air through the airburner supported on said braces, means for supplying gas to said burner, and a top ring attached to the upper part of the casing and provided with radial outletgrooves and raised seats between said grooves, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing Witnesses.

FRANZ G. I-IOERLEIN.

Witnesses:

PAUL GOEPEL, JOSEPH I-I. NILns. 

